Programming VIP

Abstract: as a representative and complete development, this case can be divided into three parts: code file planning, LED lamp driving development and LED lighting business development. This article is shared from Huawei cloud community< Use openharmory3 on Micro bear pie 0 lit LED(1)LED driver development >, author: shenlongju city. ...

Abstract: This paper introduces the structure and global variables of the FatFS file system structure, and analyzes the FatFS file operation interface. This article is shared from Huawei cloud community< Hongmeng light kernel M core source code analysis series 21 03 file system FatFS >, author: zhushy. Fat file system is the abbreviat ...

Abstract: This paper first introduces the structure and global variables of the lower LFS file system structure, and then analyzes the lower LFS file operation interface. This article is shared from Huawei cloud community< #Hongmeng light kernel M core source code analysis series II-02 file system LittleFS >, author: zhushy. LittleFS ...

One hundred blog Analysis ｜ this article is: (message encapsulation) | analyze the communication content of LiteIpc process Related articles of process communication are: v26.08 Hongmeng kernel source code analysis (spin lock) | be a good comrade of chastity archway v27.05 Hongmeng kernel source code analysis (mutex lock) | it's also ...

Absrtact: TinyFrame is a simple library for parsing communication data frames of serial ports (such as UART, telnet, socket, etc.). This article is shared from Huawei cloud community< A taste of LiteOS components - play with TinyFrame >, by Lionlace. Basic introduction TinyFrame is a simple library for parsing communication data frame ...

Abstract: This paper introduces the implementation of LiteOS-M kernel Newlib C, especially the file system and memory allocation release part, and finally introduces the Newlib hook function. This article is shared from Huawei cloud community< Hongmeng light kernel M core source code analysis series 20 Newlib C >, author: zhushy. When ...

One hundred blog Analysis ｜ this article is: (shared memory) | the fastest way of communication between processes Related articles of process communication are: v26.08 Hongmeng kernel source code analysis (spin lock) | be a good comrade of chastity archway v27.05 Hongmeng kernel source code analysis (mutex lock) | it's also a lock. It ...

Absrtact: RHash is a hash function library written in C language. It is a console utility for calculating and verifying magnetic links and various message summaries. This article is shared from Huawei cloud community< A taste of LiteOS components - play RHas >, by Lionlace. RHash is a hash function library written in C language, which ...

Absrtact: EasyFlash is an open source lightweight embedded flash library. This article is shared from Huawei cloud community< A taste of LiteOS components - play with EasyFlash >, by Lionlace. Basic introduction EasyFlash is an open source lightweight embedded Flash memory library. It occupies low resources and provides a convenient a ...

Abstract: This paper introduces the basic concept and operation mechanism of MMU virtual real mapping, and analyzes the code of common interfaces such as mapping initialization, mapping query, mapping virtual memory and physical memory, releasing virtual real mapping, changing mapping attributes, remapping and so on. This article is shared f ...